{"id":"https://openalex.org/W1983040066","doi":"https://doi.org/10.1155/2008/932068","title":"An Adaptive Resolution Computationally Efficient Short\u2010Time Fourier Transform","display_name":"An Adaptive Resolution Computationally Efficient Short\u2010Time Fourier Transform","publication_year":2008,"publication_date":"2008-01-01","ids":{"openalex":"https://openalex.org/W1983040066","doi":"https://doi.org/10.1155/2008/932068","mag":"1983040066"},"language":"en","primary_location":{"id":"doi:10.1155/2008/932068","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2008/932068","pdf_url":"https://downloads.hindawi.com/journals/jece/2008/932068.pdf","source":{"id":"https://openalex.org/S174662166","display_name":"Journal of Electrical and Computer Engineering","issn_l":"2090-0147","issn":["2090-0147","2090-0155"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319869","host_organization_name":"Hindawi Publishing Corporation","host_organization_lineage":["https://openalex.org/P4310319869"],"host_organization_lineage_names":["Hindawi Publishing Corporation"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Electrical and Computer Engineering","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://downloads.hindawi.com/journals/jece/2008/932068.pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5015732743","display_name":"Saeed Mian Qaisar","orcid":"https://orcid.org/0000-0002-4268-3482"},"institutions":[{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I4210087012","display_name":"Techniques of Informatics and Microelectronics for Integrated Systems Architecture","ror":"https://ror.org/000063q30","country_code":"FR","type":"facility","lineage":["https://openalex.org/I106785703","https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I4210087012","https://openalex.org/I4210159245","https://openalex.org/I899635006","https://openalex.org/I899635006"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Saeed Mian Qaisar","raw_affiliation_strings":["TIMA, CNRS UMR 5159, 46 avenue Felix-Viallet, 38031 Grenoble Cedex, France","TIMA, CNRS UMR 5159, Grenoble Cedex, France#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"TIMA, CNRS UMR 5159, 46 avenue Felix-Viallet, 38031 Grenoble Cedex, France","institution_ids":["https://openalex.org/I4210087012","https://openalex.org/I1294671590"]},{"raw_affiliation_string":"TIMA, CNRS UMR 5159, Grenoble Cedex, France#TAB#","institution_ids":["https://openalex.org/I1294671590"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5038428972","display_name":"Laurent Fesquet","orcid":"https://orcid.org/0000-0002-6045-8510"},"institutions":[{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I4210087012","display_name":"Techniques of Informatics and Microelectronics for Integrated Systems Architecture","ror":"https://ror.org/000063q30","country_code":"FR","type":"facility","lineage":["https://openalex.org/I106785703","https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I4210087012","https://openalex.org/I4210159245","https://openalex.org/I899635006","https://openalex.org/I899635006"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Laurent Fesquet","raw_affiliation_strings":["TIMA, CNRS UMR 5159, 46 avenue Felix-Viallet, 38031 Grenoble Cedex, France","TIMA, CNRS UMR 5159, Grenoble Cedex, France#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"TIMA, CNRS UMR 5159, 46 avenue Felix-Viallet, 38031 Grenoble Cedex, France","institution_ids":["https://openalex.org/I4210087012","https://openalex.org/I1294671590"]},{"raw_affiliation_string":"TIMA, CNRS UMR 5159, Grenoble Cedex, France#TAB#","institution_ids":["https://openalex.org/I1294671590"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5017617798","display_name":"Marc Renaudin","orcid":null},"institutions":[{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I4210087012","display_name":"Techniques of Informatics and Microelectronics for Integrated Systems Architecture","ror":"https://ror.org/000063q30","country_code":"FR","type":"facility","lineage":["https://openalex.org/I106785703","https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I4210087012","https://openalex.org/I4210159245","https://openalex.org/I899635006","https://openalex.org/I899635006"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Marc Renaudin","raw_affiliation_strings":["TIMA, CNRS UMR 5159, 46 avenue Felix-Viallet, 38031 Grenoble Cedex, France","TIMA, CNRS UMR 5159, Grenoble Cedex, France#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"TIMA, CNRS UMR 5159, 46 avenue Felix-Viallet, 38031 Grenoble Cedex, France","institution_ids":["https://openalex.org/I4210087012","https://openalex.org/I1294671590"]},{"raw_affiliation_string":"TIMA, CNRS UMR 5159, Grenoble Cedex, France#TAB#","institution_ids":["https://openalex.org/I1294671590"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":1400,"currency":"USD","value_usd":1400},"apc_paid":{"value":1400,"currency":"USD","value_usd":1400},"fwci":1.775,"has_fulltext":true,"cited_by_count":37,"citation_normalized_percentile":{"value":0.85557771,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":"2008","issue":"1","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10688","display_name":"Image and Signal Denoising Methods","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10688","display_name":"Image and Signal Denoising Methods","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11447","display_name":"Blind Source Separation Techniques","score":0.994700014591217,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12300","display_name":"Advanced Electrical Measurement Techniques","score":0.9908999800682068,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/short-time-fourier-transform","display_name":"Short-time Fourier transform","score":0.9555103778839111},{"id":"https://openalex.org/keywords/window-function","display_name":"Window function","score":0.6670053601264954},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6346149444580078},{"id":"https://openalex.org/keywords/fourier-transform","display_name":"Fourier transform","score":0.5954992175102234},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5779222846031189},{"id":"https://openalex.org/keywords/time\u2013frequency-analysis","display_name":"Time\u2013frequency analysis","score":0.5732746124267578},{"id":"https://openalex.org/keywords/signal","display_name":"SIGNAL (programming language)","score":0.4898647964000702},{"id":"https://openalex.org/keywords/sampling","display_name":"Sampling (signal processing)","score":0.4808805286884308},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.4512549638748169},{"id":"https://openalex.org/keywords/time\u2013frequency-representation","display_name":"Time\u2013frequency representation","score":0.44080987572669983},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3489648699760437},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3267453908920288},{"id":"https://openalex.org/keywords/fourier-analysis","display_name":"Fourier analysis","score":0.2706890106201172},{"id":"https://openalex.org/keywords/spectral-density","display_name":"Spectral density","score":0.18897747993469238},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.1583489179611206},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.09972694516181946}],"concepts":[{"id":"https://openalex.org/C166386157","wikidata":"https://www.wikidata.org/wiki/Q1477735","display_name":"Short-time Fourier transform","level":4,"score":0.9555103778839111},{"id":"https://openalex.org/C140101238","wikidata":"https://www.wikidata.org/wiki/Q1404885","display_name":"Window function","level":3,"score":0.6670053601264954},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6346149444580078},{"id":"https://openalex.org/C102519508","wikidata":"https://www.wikidata.org/wiki/Q6520159","display_name":"Fourier transform","level":2,"score":0.5954992175102234},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5779222846031189},{"id":"https://openalex.org/C142433447","wikidata":"https://www.wikidata.org/wiki/Q7806653","display_name":"Time\u2013frequency analysis","level":3,"score":0.5732746124267578},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.4898647964000702},{"id":"https://openalex.org/C140779682","wikidata":"https://www.wikidata.org/wiki/Q210868","display_name":"Sampling (signal processing)","level":3,"score":0.4808805286884308},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.4512549638748169},{"id":"https://openalex.org/C124062153","wikidata":"https://www.wikidata.org/wiki/Q7806645","display_name":"Time\u2013frequency representation","level":4,"score":0.44080987572669983},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3489648699760437},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3267453908920288},{"id":"https://openalex.org/C203024314","wikidata":"https://www.wikidata.org/wiki/Q1365258","display_name":"Fourier analysis","level":3,"score":0.2706890106201172},{"id":"https://openalex.org/C168110828","wikidata":"https://www.wikidata.org/wiki/Q1331626","display_name":"Spectral density","level":2,"score":0.18897747993469238},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.1583489179611206},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.09972694516181946},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.1155/2008/932068","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2008/932068","pdf_url":"https://downloads.hindawi.com/journals/jece/2008/932068.pdf","source":{"id":"https://openalex.org/S174662166","display_name":"Journal of Electrical and Computer Engineering","issn_l":"2090-0147","issn":["2090-0147","2090-0155"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319869","host_organization_name":"Hindawi Publishing Corporation","host_organization_lineage":["https://openalex.org/P4310319869"],"host_organization_lineage_names":["Hindawi Publishing Corporation"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Electrical and Computer Engineering","raw_type":"journal-article"},{"id":"pmh:oai:HAL:hal-00288750v1","is_oa":false,"landing_page_url":"https://hal.science/hal-00288750","pdf_url":null,"source":{"id":"https://openalex.org/S4306402512","display_name":"HAL (Le Centre pour la Communication Scientifique Directe)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1294671590","host_organization_name":"Centre National de la Recherche Scientifique","host_organization_lineage":["https://openalex.org/I1294671590"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Research Letters in Signal Processing, 2008, 2008 (Article ID 932068), 5pp. ⟨10.1155/2008/932068⟩","raw_type":"Journal articles"},{"id":"pmh:oai:HAL:hal-04093698v1","is_oa":false,"landing_page_url":"https://hal.science/hal-04093698","pdf_url":null,"source":{"id":"https://openalex.org/S4306402512","display_name":"HAL (Le Centre pour la Communication Scientifique Directe)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1294671590","host_organization_name":"Centre National de la Recherche Scientifique","host_organization_lineage":["https://openalex.org/I1294671590"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Research Letters in Signal Processing","raw_type":"info:eu-repo/semantics/article"},{"id":"pmh:oai:doaj.org/article:ffc67c4041d4438f8d6163a6b5d0d4d6","is_oa":false,"landing_page_url":"https://doaj.org/article/ffc67c4041d4438f8d6163a6b5d0d4d6","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Research Letters in Signal Processing, Vol 2008 (2008)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1155/2008/932068","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2008/932068","pdf_url":"https://downloads.hindawi.com/journals/jece/2008/932068.pdf","source":{"id":"https://openalex.org/S174662166","display_name":"Journal of Electrical and Computer Engineering","issn_l":"2090-0147","issn":["2090-0147","2090-0155"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319869","host_organization_name":"Hindawi Publishing Corporation","host_organization_lineage":["https://openalex.org/P4310319869"],"host_organization_lineage_names":["Hindawi Publishing Corporation"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Electrical and Computer Engineering","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.75,"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W1983040066.pdf","grobid_xml":"https://content.openalex.org/works/W1983040066.grobid-xml"},"referenced_works_count":15,"referenced_works":["https://openalex.org/W1492691317","https://openalex.org/W1571180716","https://openalex.org/W1919415331","https://openalex.org/W2094969664","https://openalex.org/W2114492997","https://openalex.org/W2128627719","https://openalex.org/W2131554460","https://openalex.org/W2131675349","https://openalex.org/W2136511864","https://openalex.org/W2136794488","https://openalex.org/W2149072817","https://openalex.org/W2156114874","https://openalex.org/W2165766091","https://openalex.org/W2973818247","https://openalex.org/W6682747227"],"related_works":["https://openalex.org/W2393357744","https://openalex.org/W2493476589","https://openalex.org/W4205152111","https://openalex.org/W2900815132","https://openalex.org/W2361149365","https://openalex.org/W2998402009","https://openalex.org/W2560154230","https://openalex.org/W4293267999","https://openalex.org/W2139622158","https://openalex.org/W2171779023"],"abstract_inverted_index":{"The":[0,16,72,87],"short\u2010time":[1],"Fourier":[2],"transform":[3],"(STFT)":[4],"is":[5,21,34,40,79],"a":[6,90],"classical":[7,85],"tool,":[8],"used":[9],"for":[10],"characterizing":[11],"the":[12,19,31,37,45,49,55,69,76,84,94,100],"time":[13],"varying":[14],"signals.":[15],"limitation":[17],"of":[18,30,68,75,93,99],"STFT":[20,78],"its":[22],"fixed":[23],"time\u2010frequency":[24,66],"resolution.":[25],"Thus,":[26],"an":[27,63],"enhanced":[28],"version":[29],"STFT,":[32],"which":[33],"based":[35],"on":[36],"cross\u2010level":[38],"sampling,":[39],"devised.":[41],"It":[42],"can":[43],"adapt":[44],"sampling":[46],"frequency":[47],"and":[48,81,97],"window":[50],"function":[51],"length":[52],"by":[53],"following":[54],"input":[56,70],"signal":[57],"local":[58],"characteristics.":[59],"Therefore,":[60],"it":[61],"provides":[62],"adaptive":[64],"resolution":[65],"representation":[67],"signal.":[71],"computational":[73,95],"complexity":[74],"proposed":[77],"deduced":[80],"compared":[82],"to":[83],"one.":[86],"results":[88],"show":[89],"significant":[91],"gain":[92],"efficiency":[96],"hence":[98],"processing":[101],"power.":[102]},"counts_by_year":[{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":3},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":4},{"year":2017,"cited_by_count":5},{"year":2016,"cited_by_count":4},{"year":2015,"cited_by_count":2},{"year":2013,"cited_by_count":4},{"year":2012,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}